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The Influence of Stereophony on the Restitution of Timbre by Loudspeakers

In a previous study [1], the restitution of timbre by loudspeakers was evaluated by perceptual and physical measurements, in order to find the link between these two parallel approaches. An experimental protocol was built which consists in recording the sound radiated by single loudspeakers in a room, and then submitting the recorded sounds to listening tests under headphones. Even if the spatial dimension of sound reproduction is not investigated here, the stereophony might also influence the restitution of timbre by loudspeakers. A panel of loudspeakers was recorded in both monophonic and stereophonic reproductions. The recordings were submitted to listening tests in order to evaluate the influence of the stereophony on the perceived differences between loudspeakers. This influence turns out to be minor, and the perceptual spaces resulting from multidimensional scaling analysis of the perceived differences were not affected by the change of the reproduction configuration.

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